and when they’d put aside desire for food and drink,
the Muse inspired the bard
to sing the famous deeds of fighting heroes –
the song whose fame had reached the skies those days:
The Strife Between Odysseus and Achilles, Peleus’ Son…
how once at the gods’ lavish feast the captains clashed
in a savage war of words, while Agamemnon, lord of armies,
rejoiced at heart that Achaea’s bravest men were battling so.

– Homer

The Odyssey, Book 8, lines 85-92. The Muse goddess inspires Demodocus to sing a song about the glorious deeds of battle heroes during the Phaeacian welcome for Odysseus. But the song tells of the quarrel between Odysseus and Achilles, with Agamemnon happy to see the best of the Achaeans quarreling. This will upset Odysseus.